146405-4320 ZEXEL 9 461 624 729 BOSCH HYDRAULIC HEAD 9461624729 1464054320

This Revised Service Letter replaces the 30May2018 Service Letter. Changes have been made to the Parts Needed.
TERMINATION DATE
31May2020
PROBLEM
The DEF injector can become plugged on certain D6N Track-Type Tractors. If the DEF injector becomes plugged it can lead to partial or full blockage of DEF flow.
AFFECTED PRODUCT
Model Identification Number
D6N LGP MG500195-00197, 199-1655
SGG00101-00214
D6N XL GB600100, 200-638
NJN00101-00156
PARTS NEEDED
Qty
Part Number Description
1 4182073 GASKET AS
1 4609257 INJECTOR AS-DEF
1 5457668 SFWR GP-A1000
1 BULK_COOLANT SEE OMM
In order to allow equitable parts availability to all participating dealers, please limit your initial parts order to not exceed 1% of dealership population. This is an initial order recommendation only, and the ultimate responsibility for ordering the total number of parts needed to satisfy the program lies with the dealer.
ACTION REQUIRED
DEF Injector Replacement ? Remove and Install:
Remove DEF injector and replace. Follow Disassembly and Assembly, UENR4079, for DEF Injector and Mounting - Remove and Install.
Update Engine Software:
Reflash the engine controller (ECM) with the software listed in the Parts Needed or latest available on SIS Web.
SERVICE CLAIM ALLOWANCES
Product smu/age whichever comes first Caterpillar Dealer Suggested Customer Suggested
Parts % Labor Hrs% Parts % Labor Hrs% Parts % Labor Hrs%
0-3000 hrs,
0-36 mo 100.0% 100.0% 0.0% 0.0% 0.0% 0.0%
3001-5000 hrs,
37-60 mo 100.0% 0.0% 0.0% 0.0% 0.0% 100.0%
This is a 1.5-hour job
PARTS DISPOSITION
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.